GJ

GJ or Gj is an abbreviation that can refer to the following:

* George Jones, used as his logo
* gigajoule (GJ), an SI unit of energy equal to 10⁹ joules
* Glassjaw, a band
* Gj (letter)
* Eurofly IATA airline designator
* Generic Java programming language
* Gliese-Jahreiss star catalogue originally compiled by Wilhelm Gliese
* An online gaming or instant messaging abbreviation corresponding to "good job", sometimes used in a sarcastic manner
* GreatestJournal
* grapefruit juice or grape juice
* Gujarat, abbreviation used by Gujarat State (India) Regional Transportation Office for Gujarat State Code
* Mexicargo IATA airline designator
* Gharjamai, a live-in Son-in-Law
*Grand Junction, Colorado, a major city in Western Colorado
*Grimmjow Jeagerjaques from the anime/manga Bleach